JP3243961B2 - Wire harness - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness in which a tape is wound around the outer periphery of a group of electric wires for bundling and protection.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a wire harness used for an automobile or the like has branch lines 2 branching from a large number of main lines 1, and branch lines 3 further branch from these branch lines 2. There are many octopus-shaped ones, and tapes 4 are wound around the respective wire groups of the trunk line 1, the branch line 2, and the branch line 3 for binding and protection.

As the tape 4, a non-adhesive tape 4 shown in FIG. 4A is used because it is inexpensive and easy to wind. When the non-adhesive tape 4 is used, the winding start portion is fixed by the second winding portion, since the tape 4 is wrapped around the tape, but cannot be fixed by the winding end portion. , FIG.
An adhesive tape 5 coated with an adhesive 5a shown in (B) is used, and the adhesive tape 5 is wound around the end of the non-adhesive tape 4 to fix the terminal.

As shown in FIG. 5, a wire group w is laid by a jig 7 on a wire harness assembly drawing plate 6 by winding the tapes 4 and 5 around the trunk line 1, branch line 2 and branch line 3 of the wire harness. After you go. The tape is wound on trunk line 1.
Tape winding (I) → tape winding of branch line 2 (II) → tape winding of branch line 3 (III) in order from the trunk line side.
The tapes are diverted, and the tapes are wound in the directions indicated by arrows.

That is, first, the non-adhesive tape 4 is wrapped from one end to the other end of the trunk line 1, and the end of the other end side is fixed with the adhesive tape 5. Next, the non-adhesive tape 4 is wound from the branch point on the main line side of the branch line 2 toward the end on the connector connection side, and the end of the end of the adhesive tape 5 is wound.
Fix with. Subsequently, the non-adhesive tape 4 is wound from the branch point of the branch line 3 toward the end on the connector connection side, and the end of the end of the non-adhesive tape is fixed with the adhesive tape 5. If there are more branch lines than the branch lines 3, a non-adhesive tape 4 is similarly wound around these branch lines from the branch point toward the end, and the ends are fixed with the adhesive tape 5.

[0006]

As described above, the tape is wound from the trunk line side, and the tape is diverged from the trunk line side in the following order.
When the tape is wound toward the front end side from the branch point, it is necessary to wind the adhesive tape at one end at the other end of the main line and at the front end corresponding to the number of branches.
That is, in the example shown in FIG. 3, the adhesive tape 5 must be wound around five places.

When the terminal is fixed with the adhesive tape 5, it is necessary to temporarily suspend the operation of winding with the non-adhesive tape 4 and to change the adhesive tape 5 and wind it. When winding the adhesive tape 5 around the above five places,
There is a problem that the work of changing the tape needs to be performed five times, resulting in extremely poor workability.

Further, since the pressure-sensitive adhesive tape 5 is more expensive than the non-adhesive tape 4, there is a problem in that the material cost increases if there are many places to be used. There was a disadvantage.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and reduces the number of locations where an adhesive tape is used, so that the wire harness may be in any form, that is, a branch line branched from a trunk line. It is an object of the present invention to improve the efficiency of the tape winding operation by using only one adhesive tape regardless of the number and the number of branch lines branching from the branch line.

[0010]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a trunk line of a wire harness, a branch line branched from the trunk line, and a branch line further branched from the branch line for binding and protecting a group of electric wires. Wherein the first non-adhesive tape is wound toward the branch side from the branch line from the end of the branch line on the connector connection side, and wound around the branch line at least once. Later, disconnect the cable from the end of the branch line on the connector connection side.
Is wound around the end of the first non-adhesive tape that has been cut off at the branch point, and is wound toward the branch side with the main line. A third non-adhesive tape is wound around the other end of the second non-adhesive tape wound at the branch point and wound around the other end, and only the end of the third non-adhesive tape is an adhesive tape. Is wound and fixed, while each of the first, second, and third non-adhesive tapes is fixed by wrapping the second winding on the outer peripheral surface of the first winding at the beginning of the winding. The present invention provides a method of winding a wire harness tape.

The non-adhesive tape is wound in a half-wrap manner in which the tape wound around the outer peripheral surface of the electric wire group is wound over substantially half the width of the outer peripheral surface that has been wound first, so that the tape is wound on the winding start side. The tape of the second winding covers the outer peripheral surface of the tape of the first winding, so that the tape is fixed without using an adhesive tape.

[0012]

According to the wire harness of the present invention, the non-adhesive tape is wound to the branch position from the tip end of the branch line on the terminal side, which branches sequentially from the trunk line side of the wire harness, and is separated at the branch position. And the non-adhesive tape is wound sequentially, and all the cut ends at the branch position are wrapped around the tape for processing. It can be only the winding end. That is, regardless of the branching mode of the wire harness, only one location needs to be fixed with the adhesive tape. As a result, it is possible to sequentially wind substantially the entirety with the non-adhesive tape, and it is not necessary to wind the adhesive tape at each end of the branch line and the branch line.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1C shows a wire harness 10 according to the embodiment, and the wire harness 10 shown in FIG. 1C is formed through the steps of FIGS. 1A and 1B. The wiring harness 10 includes a main line 11 and a plurality of branch lines 12.
Are branched, and branch lines 13A, 13B,... Are branched from the branch lines 12A, 12B,. The branch lines may further branch from the branch lines 13A and 13B.

A tape is wound around the wire group w of the main line 11, the branch lines 12A and 12B and the branch lines 13A and 13B for binding and protection.
The non-adhesive tape 4 shown in (A) is used. As the non-adhesive tape 4, a cotton tape or a vinyl chloride tape is used, the adhesive is not applied, and the tapes do not adhere to each other even if they are wound around each other.

As shown in FIG. 1A, first, in the first stage (I), the non-adhesive tape 4 is connected to the connectors of the branch lines 13A and 13B branched at the terminal side as viewed from the trunk line 11 side. The first non-adhesive tape 4I is wound in the direction indicated by the arrow from the tip end side of the side connected to No. 15 to the branch point b1.

As shown in FIG. 2, the non-adhesive tape 4 is wound in a half-wrap manner, and is sequentially wound on the outer peripheral surface of the previously wound tape so as to overlap substantially half in the width direction of the tape. Therefore, the outer peripheral surface of the first turn 4a at the start of winding is wrapped and fixed by the next second turn 4b. That is, even if the adhesive tape 5 is not used, the non-adhesive tape 4
The terminal at the beginning of winding is fixed.

The first non-adhesive tape 4I wound around the branch lines 13A and 13B from the tip end is connected to the branch lines 12A and 1B.
Separation is performed at a branch point b1 with 2B, and the separation terminal 4c is wound around the branch lines 12A and 12B at least once. However, as shown in FIG. 2, these detaching terminals 4c only wrap around the outer peripheral surface of the previously wound tape, so that a fixing process is required.

Next, as shown in FIG. 1 (B), in a second stage (II), the trunk line 11 passes through a branch point b1 of the branch lines 12A, 12B from the ends of the connector connection side to the branch lines 13A, 13B. The second non-adhesive tape 4II is wound by half-wrap winding in the direction indicated by the arrow to the branch point b2. In the winding process, at the branch point b1, the branch lines 13A, 13A
The separation terminal 4c of the first non-adhesive tape 4I wound around B is entangled, and the separation terminal 4c is fixed. These branch lines 12A and 12B are at a branch point b with the main line 11.
2, the terminal 4c is wound around the trunk 11 at least once. The winding start side terminal is fixed because it is half-wrapped like the branch line side.

Next, as shown in FIG. 1 (C), in a third stage (III), the third non-adhesive tape 4III is halved from one end of the trunk line 11 to the other end side as indicated by an arrow. Wrap with wrap. In this winding process, the branch point b
In 2, the separation terminal 4 c of the second non-adhesive tape 4 II wound around the branch lines 12 A and 12 B is wound and fixed. Third non-adhesive tape 4III wrapped around main line 11
Cannot be wound and fixed by another non-adhesive tape, and thus the adhesive tape 5 shown in FIG. 4B is wound and fixed. The adhesive tape 5 has a structure in which an adhesive 5a is applied to one surface of a vinyl chloride tape.
The end of the third non-adhesive tape 4III is fixed by abutting the a side to the non-adhesive tape 4III side and winding it.

The non-adhesive tape 4 (4I, 4II, 4III) and the adhesive tape 5 are wound around the wire harness 10 on a wire harness assembly drawing plate 6 shown in FIG. The non-adhesive tape 4 is wound around the wire group w, and the adhesive tape 5 is wound only at the end of the last trunk line, thus completing the tape winding process.

[0021]

As is apparent from the above description, in the method for winding a wire harness tape according to the present invention, when an inexpensive non-adhesive tape is used as the tape to be wound to bind and protect the electric wire group, the branching is performed. Wound from the tip of the side to the branch point, the terminal separated at the branch point,
Since it is wound and fixed by the tape to be wound next, only one end of the end of the main line need be finally fixed with the adhesive tape. Therefore, when winding the tape, it is possible to eliminate the trouble of winding the adhesive tape for each of the end terminals of the branch line and the branch line as in the related art, thereby improving the efficiency of the tape winding operation. In addition, since the amount of expensive adhesive tape used can be reduced, the cost can be reduced.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are perspective views showing a tape winding step of a wire harness of the present invention.

FIG. 2 is a perspective view showing a method of winding the tape of the embodiment on an electric wire group.

FIG. 3 is a perspective view showing a conventional tape winding method of a wire harness.

FIG. 4A is a perspective view of a non-adhesive tape, and FIG. 4B is a perspective view of an adhesive tape.

FIG. 5 is a perspective view showing a tape winding operation on a wire harness assembly drawing board.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 Non-adhesive tape 4I 1st non-adhesive tape 4II 2nd non-adhesive tape 4III 3rd non-adhesive tape 4a Winding start terminal 4c Winding end separating terminal 5 Adhesive tape 10 Wire harness 11 Trunk line 12A, 12B Branch line 13A, 13B Branch line

Claims (2)

(57) [Claims] A wire for binding and protecting a group of electric wires.
The main line of the ear harness, a branch line branched from the main line, the branch line
Tape around the outer circumference of the branch lineToWrap with wrap
DressingMethod  A first non-adhesive tape from the end of the branch line on the connector connection side.
Is wound toward the branch side with the branch line, and the branch line
After winding at least once, cut off and
The second non-adhesive tape is located above the connector connection end.
Wrap the end of the first non-adhesive tape separated at the junction
Wrapped around the branch line with the main line,
Is separated after winding at least once, and one end of the trunk
The third non-adhesive tape is cut off at the branch point from the side
The end of the end of the second non-adhesive tape is wrapped around to the other end.
And only the end end of the third non-adhesive tape
While the adhesive tape is wound and fixed,
Each winding start end of the first, second and third non-adhesive tapes is
Wrap the second turn around the outer circumference of the first turn
How to wrap the fixed wire harness with tape. 2. The first, second and third non-adhesive tapes
Around the outer surface of the previously wound tape,
Half wrap winding, which is wound sequentially so that the halves overlap
And the first, second, and third non-adhesive tapes at the beginning of winding.
Then, the second turn is placed in the half of the outer circumference of the first turn in the width direction.
The wire harness according to claim 1, which is wrapped and fixed.
Ness tape winding method.